PDI NVM enable is fast enough that bare polling is enough without a fixed delay in between each attempt. Make sure the USART transmitter is enabled explicitly when the USART is configured, so that repeated attempts to re-enter PDI mode don't fail due to TXEN not being set.

Fix PDI code - must send NVM enable key least significant byte first, need to make sure Tx and Rx is switched correctly including disabling the output on the Tx line when receiving.

Fix AVRISP PDI protocol - make sure inverted masks have the appropriate parenthesis around them, make sure the BREAK command for the hardware USART has 12 clock cycles exactly. Poll NVM Enable bit in the target's STATUS PDI register with a timeout, as it is not set immediately.

Change over AVRISP project to have both hardware USART and software USART modes for the PDI protocol, when enabled. Fix up PDI initialisation routines.

Fix PDITarget_ReceiveByte() not discarding the start bit properly, and reading in the bits inverted and in the wrong order.

Fix inverted bit-banged USART logic in the AVRISP project for PDI programming. Add a delay to the clock toggling in the AVRISP project to ensure that the programming speed does not exceed 10MHz under any conditions to satisfy the limits in the datasheet for all target voltages. Fix incorrect pin being used as the DATA in in PDI programming mode.

Increase timeout of Mass Storage and Still Image host commands to 10 seconds (up from 5) to account for slow-processing devices.

Added brace guards to macros with parameters to prevent unintended changed evaluation of the macro expression.

Minor code cleanups (remove redundant comments, fix spacing, etc.).

Make sure that USB_STREAM_TIMEOUT_MS is set in the MassStorageHost ClassDriver demo, so that slow devices don't time out the data pipe. Increase pipe timeout in both MassStorageHost demos to 5 seconds to account for the really slow devices.

Fix TeensyHID bootloader not properly shutting down the USB interface to trigger a disconnection on the host before resetting the AVR.

Fixed HID Parser not distributing the Usage Min and Usage Max values across an array of report items.

Added new HID_ALIGN_DATA() macro to return the pre-retrieved value of a HID report item, left-aligned to a given datatype.

Added new PreviousValue to the HID Report Parser report item structure, for easy monitoring of previous report item values.

Make sure the protocol handler files are included in the Doxygen documentation of the AVRISP project.

Auto-configure AVRISP programmer configuration when built for the XPLAIN board to match the XPLAIN hardware connections.

Document the PDI programming routines implemented so far in the AVRISP project. Add ability to selectively disable ISP programming support in addition to the existing ability to disable PDI programming support.

Started implementing the low level PDI protocol in the AVRISP project, for XMEGA device programming.

Removed John Steggall's software UART code from the XPLAIN Bridge project due to reliability issues.

Factor out all the ISP related code into a seperate ISPProtocol set of files in the AVRISP Clone programmer project, to clearly seperate out the programming protocols when PDI programming is implemented.

Rename the V2Protocol command handlers in the AVRISP project in preperation of XMEGA PDI programming support.

Added CDC_Host_Flush() function to the CDC Host Class driver to flush sent data to the attached device.

Remove dependancies from the LowLevel demos to the ClassDriver demos, since the use of ClassDriver headers now outputs an error when NO_STREAM_CALLBACKS is used.

Add double banking property to LUFA powered projects in the Projects directory. Add guards to macro parameters to ensure that formulas passed as parameters don't mess up the internal macro structure.

Fix up demo documentation device compatibility list to be as general as possible to reduce changes required as Atmel releases more devices within the same USB AVR series.

Added pinouts to the AVRISP project for a standard ISP 6 Pin header to make construction of a standard ISP programmer easier.

Doxygen fixes to \param directives to give data direction in all projects. Make HID item filtering routines clearer in the HID WithParser demos.

Remove USE_NONSTANDARD_DESCRIPTOR_NAMES compile time token, split out standard descriptors into seperate USB_Descriptor_* and USB_StdDescriptor_* structures so that both can be used within the one project.

Add guard to the HID Host Class driver SetProtocol command, to ensure that the device supports boot protocol mode before issuing the request.

Add in new invalid event hook check targets to project makefiles to produce compilation errors when invalid event names are used in a project.

Re-add in flip, flip-ee, dfu and dfu-ee targets to project makefiles (thanks to Opendous Inc.)

Fix allowable F_CPU values comment in project makefiles.

Move ADC VTARGET sampling to a new V2Params_UpdateParamValues() in the AVRISP project so that there is a central place where all non-PC set target values can be updated easily.

Increase AVRISP command timeout to 240ms up from 150ms to prevent some ISP commands from timing out too early.

Add check to the PROGRAM FLASH ISP and PROGRAM EEPROM ISP handler to return an explicit error when the host attempts to write more data than the device is able to buffer.

Make WaitWhileBusy function in the AVRISP project more explicit about how it sends and receives the busy check command.

Reduce size of PROGRAM FLASH ISP or PROGRAM EEPROM ISP buffer to 256 bytes to prevent blowing the stack on the smallest USB AVR models.

Fixed issue in AVRISP project where the target RESET line was being toggled before it was tristated, causing problems synchronising to some targets (thanks to Mike Alex).

Added pinout information to the AVRISP project.

Fixed Programmer's Notepad project file to reflect new location of AVRISP project.